SFB3DUtil

Wrapper Class for the I3DUtil interface.

#include <SFB3DUtil.h.hpp>

class SFB3DUtil : public SFBQuery;

SFMTYPEDEFWRAPPER(SFB3DUtil)

Inheritance diagram

Version

BREW 2.0	BREW 2.1	BREW 3.1
X	O	X

Reference

BREW API I3DUtil

Member

Public Functions
`SInt32`	Cos( `SInt32` angle ) Compute the cosine.
`SFCError`	GetRotateMatrix( `SInt32` angle , `AEE3DTransformMatrix*` matrixOut , `AEE3DRotateType` axis ) Compute the transformation matrix for a rotation about x, y, or z-axis.
`SFCError`	GetRotateVMatrix( `AEE3DPoint const ` vector , `SInt32` angle , `AEE3DTransformMatrix` matrixOut ) Compute the transformation matrix for a rotation about a given vector from origin.
`SFCError`	GetUnitVector( `AEE3DPoint const ` src , `AEE3DPoint` dst ) Compute the unit vector (dst) of a source vector (src).
`SFCError`	GetViewTransformMatrix( `AEE3DPoint const ` position , `AEE3DPoint const ` look , `AEE3DPoint const ` up , `AEE3DTransformMatrix` matrixOut ) Compute the fixed point transformation matrix for a given position, lookat- direction, and up-direction.
`SFCError`	MatrixMultiply( `AEE3DTransformMatrix` matrixOut , `AEE3DTransformMatrix const ` matrixIn ) This function multiplies two fixed point matrices.
static `SFB3DUtilSmp`	NewInstance( `Void` ) Create a new instance of SFB3DUtil class.
`SFCError`	SetIdentityMatrix( `AEE3DTransformMatrix*` matrixOut ) Set the rotation part (3x3) of the transformation matrix to the identity matrix in Q12 format.
`SFCError`	SetTranslationMatrix( `AEE3DPoint` vector , `AEE3DTransformMatrix` matrix ) Set the translation part of the transformation matrix for a given translation vector in Q12 Fixed Point Format.
`SInt32`	Sin( `SInt32` angle ) Compute the sine.
`UInt32`	Sqrt( `UInt32` number ) Compute the square root of the input parameter number.
`SFCError`	QueryInterface( `AEECLSID` clsid , `VoidHandle` handle ) (inherits from SFBQuery) QueryInterface( `AEECLSID` clsid , `SFBBaseSmpPtr` handle ) (inherits from SFBQuery) Ask an object for another API contract from the object in question.
`SFBBaseSmp`	QueryInterface( `AEECLSID` clsid ) (inherits from SFBQuery) Ask an object for another API contract from the object in question.
`Void`	Self( `AEECLSID` clsidReq , `SFBQuerySmpPtr` clone , `AEECLSID` clsidImp ) (inherits from SFBQuery) Helper macro for those implementing an object with a single interface.
`SFBQuerySmp`	Self( `AEECLSID` clsidReq , `AEECLSID` clsidImp ) (inherits from SFBQuery) Helper macro for those implementing an object with a single interface.

SFB3DUtil::Cos

Compute the cosine.

[ public ]
SInt32 Cos(
    SInt32 angle   // Q12 format (PI=2048)
);

Reference

BREW API I3DUtil_cos

SFB3DUtil::GetRotateMatrix

Compute the transformation matrix for a rotation about x, y, or z-axis.

[ public ]
SFCError GetRotateMatrix(
    SInt32 angle                      // rotation angle in Q12 format (PI=2048)
    AEE3DTransformMatrix* matrixOut   // pointer to the resulting transformation matrix
    AEE3DRotateType axis              // axis to do rotation around
);

Reference

BREW API I3DUtil_GetRotateMatrix

SFB3DUtil::GetRotateVMatrix

Compute the transformation matrix for a rotation about a given vector from origin.

[ public ]
SFCError GetRotateVMatrix(
    AEE3DPoint const * vector         // pointer to vector originated from origin for the rotation in Q12 format
    SInt32 angle                      // rotation angle in Q12 format (PI=2048)
    AEE3DTransformMatrix* matrixOut   // pointer to the resulting transformation matrix
);

Reference

BREW API I3DUtil_GetRotateVMatrix

SFB3DUtil::GetUnitVector

Compute the unit vector (dst) of a source vector (src).

[ public ]
SFCError GetUnitVector(
    AEE3DPoint const * src   // pointer to source vector
    AEE3DPoint* dst          // pointer to resulting unit vector
);

Description

The resulting vector is Q12.

Rerference

BREW API I3DUtil_GetUnitVector

SFB3DUtil::GetViewTransformMatrix

Compute the fixed point transformation matrix for a given position, lookat- direction, and up-direction.

[ public ]
SFCError GetViewTransformMatrix(
    AEE3DPoint const * position       // pointer to positional vector of the viewer
    AEE3DPoint const * look           // pointer to directional vector of the viewing direction
    AEE3DPoint const * up             // pointer to directional vector for the up-direction
    AEE3DTransformMatrix* matrixOut   // pointer to the resulting transformation matrix
);

Description

Each directional vector is given as a 3D point or vector in Q12 format.

Rerference

BREW API I3DUtil_GetViewTransformMatrix

SFB3DUtil::MatrixMultiply

This function multiplies two fixed point matrices.

[ public ]
SFCError MatrixMultiply(
    AEE3DTransformMatrix* matrixOut         // left multiplicant and the resulting matrix
    AEE3DTransformMatrix const * matrixIn   // right mutiplicant
);

Description

The multiplication is made using the equation: MaxtrixOut = MatrixOut * MatrixIn

Reference

BREW API I3DUtil_MatrixMultiply

SFB3DUtil::NewInstance

Create a new instance of SFB3DUtil class.

[ public, static ]
SFB3DUtilSmp NewInstance(Void);

SFB3DUtil::SetIdentityMatrix

Set the rotation part (3x3) of the transformation matrix to the identity matrix in Q12 format.

[ public ]
SFCError SetIdentityMatrix(
    AEE3DTransformMatrix* matrixOut   // pointer to the resulting matrix
);

Description

The transformation matrix will set to: { 4096, 0, 0, 0, 0, 4096, 0, 0, 0, 0, 4096, 0 }

Reference

BREW API I3DUtil_SetIdentityMatrix

SFB3DUtil::SetTranslationMatrix

Set the translation part of the transformation matrix for a given translation vector in Q12 Fixed Point Format.

[ public ]
SFCError SetTranslationMatrix(
    AEE3DPoint* vector             // pointer to the translation vector in Q12 Fixed Point Format
    AEE3DTransformMatrix* matrix   // pointer to the resulting matrix
);

Reference

BREW API I3DUtil_SetTranslationMatrix

SFB3DUtil::Sin

Compute the sine.

[ public ]
SInt32 Sin(
    SInt32 angle   // Q12 format (PI=2048)
);

Reference

BREW API I3DUtil_sin

SFB3DUtil::Sqrt

Compute the square root of the input parameter number.

[ public ]
UInt32 Sqrt(
    UInt32 number   // value
);

Reference

BREW API I3DUtil_sqrt